WO2021129865A1 - Système de régulation de température automatique et station d'échange d'énergie et station de stockage d'énergie le comprenant - Google Patents

Système de régulation de température automatique et station d'échange d'énergie et station de stockage d'énergie le comprenant Download PDF

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Publication number
WO2021129865A1
WO2021129865A1 PCT/CN2020/140043 CN2020140043W WO2021129865A1 WO 2021129865 A1 WO2021129865 A1 WO 2021129865A1 CN 2020140043 W CN2020140043 W CN 2020140043W WO 2021129865 A1 WO2021129865 A1 WO 2021129865A1
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WO
WIPO (PCT)
Prior art keywords
battery pack
cooling
control system
charging
refrigeration
Prior art date
Application number
PCT/CN2020/140043
Other languages
English (en)
Chinese (zh)
Inventor
张建平
邹瑞
朱明厚
Original Assignee
奥动新能源汽车科技有限公司
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Publication of WO2021129865A1 publication Critical patent/WO2021129865A1/fr

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/61—Types of temperature control
    • H01M10/613—Cooling or keeping cold
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
    • B60L53/80—Exchanging energy storage elements, e.g. removable batteries
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60S—SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR
    • B60S5/00—Servicing, maintaining, repairing, or refitting of vehicles
    • B60S5/06—Supplying batteries to, or removing batteries from, vehicles
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/61—Types of temperature control
    • H01M10/617—Types of temperature control for achieving uniformity or desired distribution of temperature
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/62—Heating or cooling; Temperature control specially adapted for specific applications
    • H01M10/625—Vehicles
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/63—Control systems
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/63—Control systems
    • H01M10/633—Control systems characterised by algorithms, flow charts, software details or the like
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/65—Means for temperature control structurally associated with the cells
    • H01M10/655—Solid structures for heat exchange or heat conduction
    • H01M10/6554—Rods or plates
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/65—Means for temperature control structurally associated with the cells
    • H01M10/656—Means for temperature control structurally associated with the cells characterised by the type of heat-exchange fluid
    • H01M10/6567—Liquids
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/258—Modular batteries; Casings provided with means for assembling
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0013—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries acting upon several batteries simultaneously or sequentially
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/70—Energy storage systems for electromobility, e.g. batteries
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors

Definitions

  • the invention relates to the field of power exchange for electric vehicles, and in particular to a temperature automatic control system and a exchange station and an energy storage station containing the automatic temperature control system.
  • the heat generated by the charging of the battery pack is the main heat dissipation object. Since the battery pack must be taken out of the charging compartment after the charge is completed, it is difficult to directly cool the inside of the battery pack by liquid cooling. In the prior art, air cooling is generally used to cool the battery pack, but the cooling effect of air cooling is very limited and cannot adapt to the increasingly higher charging power. Therefore, it is necessary to implement more effective cooling measures for the battery pack.
  • the technical problem to be solved by the present invention is to overcome the disadvantage of the poor cooling effect of cooling the battery pack during charging in the prior art, and to provide a temperature automatic control system and a power exchange station and an energy storage station containing the same.
  • a temperature automatic control system comprising a plurality of charging bins, the charging bins are used to charge the battery packs placed in the charging bins, each of the charging bins is provided with a battery pack cooling system, the The battery pack cooling system includes a refrigeration part, and the refrigeration part is provided with an interface for inputting a cooling medium into the battery pack.
  • the automatic temperature control system is equipped with a battery pack cooling system in the charging compartment to input cooling medium to the battery pack through the refrigeration part to absorb the heat generated by the battery pack, avoid heat accumulation inside the battery pack, and thereby facilitate the Controlling the temperature within a suitable temperature range is beneficial to improve the charging efficiency of the battery pack and also helps to increase the life of the battery pack.
  • the battery pack cooling system further includes a cooling source connected to the refrigeration part, the cooling source is used to provide a cooling medium to the battery pack, and the refrigeration part has a cooling pipe, so The cooling pipe is connected to the cooling source, and the cooling medium in the cooling source flows through the cooling pipe through the interface, so as to achieve the purpose of cooling the battery pack through the above-mentioned structure arrangement.
  • the cooling pipe is directly arranged inside the battery pack, and the interface is arranged on the surface of the battery pack.
  • the cooling pipe By arranging the cooling pipe directly inside the battery pack, the cooling medium can flow through the heat source inside the battery pack as much as possible, and the heat dissipation capacity is improved.
  • the battery pack has a heat source, and the cooling pipe is in direct contact with the heat source to further improve the heat dissipation capability.
  • the cooling source has a liquid-cooled connector butted with the interface, and the liquid-cooled connector is arranged in the charging compartment.
  • the above-mentioned structure enables the movable battery pack to be connected to the charging bin with the pipeline after being put into the charging bin.
  • the use of liquid-cooled connectors for connection also has the effect of convenient plugging, so that the battery pack can be quickly disconnected from the charging compartment after the charging is completed.
  • the charging compartment includes a connector assembly
  • the connector assembly includes:
  • a charging plug which is used to connect to the battery pack and supply power to the battery pack
  • a plug-in mechanism drives the charging plug to be plugged into the battery pack
  • the liquid-cooled connector is disposed on the plug-in mechanism, and the plug-in mechanism drives the liquid-cooled connector to be connected to the interface on the surface of the battery pack to solve the fluid connection between the battery pack and the charging compartment The problem of fast connection or separation.
  • the cooling source has a cooling control unit, and the cooling control unit is used to control the flow rate of the cooling medium flowing through the cooling pipe, so as to achieve the purpose of precise cooling of the battery pack through quantitative control of the flow rate, To avoid excessive waste of energy.
  • the cooling source further has a detection unit which is electrically connected to the cooling control unit, and the detection unit is used to detect whether the battery pack is in a charging state, and if the detection unit detects the battery When the bag is in a charging state, a start signal is sent to the cooling control unit.
  • a detection unit which is electrically connected to the cooling control unit, and the detection unit is used to detect whether the battery pack is in a charging state, and if the detection unit detects the battery When the bag is in a charging state, a start signal is sent to the cooling control unit.
  • the state of the cooling source conveying the cooling medium can be synchronized with the charging state of the battery pack, avoiding energy waste caused by the cooling source continuing to deliver the cooling medium to the battery pack when the battery pack is not in the charging state.
  • the charging compartment includes a connector assembly
  • the connector assembly includes:
  • a charging plug which is used to connect to the battery pack and supply power to the battery pack
  • a plug-in mechanism drives the charging plug to be plugged into the battery pack
  • the detection unit is arranged on the plug-in mechanism to determine whether the battery pack is in a charging state based on the plug-in state of the plug-in mechanism, so as to reduce the possibility of misjudgment by the detection unit.
  • the detection unit is a photoelectric switch, which determines whether the battery pack and the charging compartment are docked in a non-contact detection manner by measuring the distance from the battery pack.
  • a temperature automatic control system comprising a plurality of charging bins, the charging bins are used to charge the battery packs placed in the charging bins, each of the charging bins is provided with a battery pack cooling system, the The battery pack cooling system includes a refrigerating part, and the refrigerating part is arranged at a position corresponding to the battery pack in the charging compartment.
  • the refrigeration part is arranged at the position where the battery pack is arranged on the charging compartment, and the refrigeration part is used to absorb the heat generated from the battery pack through indirect cooling, so as to prevent heat from accumulating inside the battery pack, which is beneficial to Controlling the temperature of the battery pack within a suitable temperature range is beneficial to improve the charging efficiency of the battery pack and also helps to increase the life of the battery pack.
  • the refrigeration part is a self-circulation heat dissipation system
  • the self-circulation heat dissipation system includes a heat dissipation pipe
  • the heat dissipation pipe includes a heating part and a condensation part
  • the heating part is used to absorb heat from the battery pack to form steam
  • the condensing part is used for cooling the vapor to form liquid and returning to the heating part
  • the heating part is in thermal contact with the outer wall of the battery pack
  • the condensing part is arranged away from the surface of the battery pack.
  • the above structure uses the heating part of the heat dissipation pipe to absorb the heat of the battery pack and form steam, and the cooling part to cool the steam and form a liquid, thereby efficiently cooling the battery pack and avoiding heat accumulation inside the battery pack, In turn, it is beneficial to control the temperature of the battery pack within a suitable temperature range to improve the service life of the battery pack.
  • the self-circulating heat dissipation system can cool the battery pack within a certain temperature range without the intervention of an external cooling system, so that the cooling object itself can realize temperature adjustment.
  • the heat dissipation pipe further includes a recirculation part for returning the cooled liquid to the heating part.
  • the recirculation part is used to return the liquid to the heating part, so that the cooled liquid can continue to absorb heat and evaporate, and then enter the cooling part again to be cooled as a liquid, which is beneficial to improve the circulation efficiency of the liquid evaporating into a gas, and thus is beneficial Improve the efficiency of heat exchange to control the temperature of the battery pack within an appropriate temperature range.
  • the charging compartment further includes a battery tray, the battery tray is used to carry the battery pack, and the refrigeration unit is provided on the battery tray.
  • the refrigeration part is arranged on the battery tray for carrying the battery pack, and the refrigeration part is used to absorb the heat generated from the battery pack through indirect cooling, so as to prevent heat from accumulating inside the battery pack, thereby benefiting Controlling the temperature of the battery pack within a suitable temperature range is beneficial to improve the charging efficiency of the battery pack and also helps to increase the life of the battery pack.
  • the refrigerating part includes a refrigerating tube, and the refrigerating tube is directly arranged on the battery tray.
  • the refrigeration tubes are continuously and evenly spaced on the battery tray.
  • the refrigeration tubes are continuously and evenly spaced on the battery tray, which is beneficial to improve the uniformity of the temperature of the refrigeration part, and further helps to improve the uniformity of the temperature of the battery pack.
  • the refrigerating part includes a refrigerating pipe, the refrigerating pipe is arranged on the battery tray through a refrigerating plate, the refrigerating plate includes a plate body and a pipe arranged in the plate body, and the refrigerating pipe is arranged on the battery tray. Inside the pipeline.
  • the refrigeration tube is indirectly arranged on the battery tray through the refrigeration plate to fix the refrigeration tube with the refrigeration plate, which is beneficial to prevent accidental damage to the refrigeration tube, to improve the life of the refrigeration section, and to facilitate the overall processing and manufacturing of the refrigeration tube.
  • the material of the plate body includes one of aluminum alloy, copper, steel or graphite; the material of the refrigeration tube includes one of aluminum alloy, copper or steel; and/or the material of the refrigeration tube
  • the structure is a round tube or rectangular tube.
  • aluminum alloy, copper, steel or graphite have relatively high thermal conductivity, the heat exchange efficiency of the refrigeration section can be further improved.
  • the battery tray further includes a tray cooling joint connected to both ends of the refrigeration pipe, and the cooling joint is used for docking with the cooling source of the automatic temperature control system.
  • tray cooling connector on the battery tray By setting the tray cooling connector on the battery tray to connect with the cooling source of the charging compartment, it is convenient to disassemble and maintain.
  • a power exchange station includes the above-mentioned automatic temperature control system.
  • the switching station cools the battery pack placed in the charging compartment through a cooling system, which effectively prevents heat from accumulating inside the battery pack, which is beneficial to control the temperature of the battery pack within a suitable temperature range to improve the charging efficiency of the battery pack , Extend the service life of the battery pack.
  • An energy storage station includes the temperature automatic control system as described above.
  • the energy storage station cools the battery pack placed in the charging bin through the cooling system, effectively avoiding heat accumulation inside the battery pack, and helping to control the temperature of the battery pack within a suitable temperature range to improve the charging of the battery pack Efficiency, prolong the service life of the battery pack.
  • the automatic temperature control system, the power exchange station and the energy storage station that contain it, are equipped with a battery pack cooling system in the charging compartment to use the refrigeration part of the battery pack cooling system to absorb the heat generated by the battery pack and avoid heat accumulation inside the battery pack.
  • a battery pack cooling system in the charging compartment to use the refrigeration part of the battery pack cooling system to absorb the heat generated by the battery pack and avoid heat accumulation inside the battery pack.
  • FIG. 1 is a schematic diagram of the structure of the temperature automatic control system of Embodiment 1 of the present invention.
  • FIG. 2 is a schematic diagram of the structure of the charging compartment of Embodiment 1 of the present invention.
  • FIG. 3 is a schematic diagram of the connection relationship between the battery pack cooling system and the battery pack according to Embodiment 1 of the present invention.
  • Fig. 4 is a schematic diagram of the layout of the charging plug and the liquid-cooled connector of Embodiment 1 of the present invention.
  • FIG. 5 is a schematic diagram of the structure of the charging bin according to Embodiment 2 of the present invention.
  • FIG. 6 is a schematic diagram of the structure of the charging bin according to Embodiment 3 of the present invention.
  • FIG. 7 is a schematic diagram of the structure of the battery tray of Embodiment 3 of the present invention.
  • FIG. 8 is a schematic diagram of the structure of the refrigerating plate of the refrigerating part of Embodiment 3 of the present invention.
  • Charging compartment 10 refrigeration part 1, heating part 1a, condensation part 1b; interface 11; cooling pipe 12; refrigeration pipe 14; refrigeration plate 15; cooling source 2; pipeline 21; liquid cooling joint 22; connector assembly 3;
  • the present invention provides a temperature automatic control system, which includes a plurality of charging bins 10, the charging bin 10 is used to charge the battery pack 20 placed in the charging bin 10, each Each charging compartment 10 is provided with a battery pack cooling system, and the battery pack cooling system includes a refrigeration unit 1 that includes an interface 11 for inputting a cooling medium into the battery pack 20.
  • the automatic temperature control system is equipped with a battery pack cooling system in the charging compartment 10 to input a cooling medium to the battery pack 20 through the refrigerating part 1 to absorb the heat generated by the battery pack 20 and avoid heat accumulation inside the battery pack 20. It is beneficial to control the temperature of the battery pack 20 within a suitable temperature range, which is beneficial to improve the charging efficiency of the battery pack 20, and is also beneficial to improve the life of the battery pack 20.
  • the battery pack cooling system also includes a cooling source 2, which is connected to the refrigeration unit 1 through a pipeline 21.
  • the cooling source 2 is used to produce and provide a cooling medium to the battery pack 20.
  • the refrigeration unit 1 has a cooling pipe 12 to pass The cooling pipe 12 is connected to the cooling source 2 so that the cooling medium in the cooling source 2 flows into the cooling pipe 12 through the interface 11 to achieve the purpose of cooling the battery pack 20.
  • the cooling pipe 12 is directly arranged inside the battery pack 20, and the interface 11 is correspondingly arranged on the surface of the battery pack 20. Therefore, by directly disposing the cooling pipe 12 inside the battery pack 20, the cooling medium can flow through the heat source inside the battery pack 20 as much as possible.
  • the cooling pipe 12 may be in direct contact with the heat source to further improve the heat dissipation capability.
  • the cooling source 2 and the interface 11 are connected through a liquid-cooled connector 22, which is arranged in the charging compartment 10, so that the movable battery pack 20 can be connected to the charging compartment 10 after being placed in the charging compartment 10 to realize a pipeline. ⁇ Connectivity.
  • the use of the liquid-cooled connector 22 for connection also has the effect of facilitating plugging, so that the battery pack 20 can be quickly disconnected from the charging compartment 10 after the charging is completed.
  • the charging compartment 10 includes a connector assembly 3, and the connector assembly 3 includes a charging plug 31 and a plug-in mechanism 32.
  • the charging plug 31 is used to connect the battery pack 20 and supply power to the battery pack 20.
  • the plug mechanism 32 includes a linear guide rail and a movement mechanism.
  • the charging plug 31 is arranged above the linear guide rail.
  • the movement mechanism drives the charging plug 31 along the linear guide rail. It moves in the extension direction and is connected to the surface of the battery pack 20 to realize the purpose of automatically plugging and unplugging the charging plug 31.
  • the liquid-cooled connector 22 of the cooling source 2 is also arranged on the plug mechanism 32, so that the plug mechanism 32 can also drive the liquid-cooled connector 22 to be connected to the interface 11 on the surface of the battery pack 20 to solve the problem of battery How to quickly connect or disconnect the fluid connection between the bag 20 and the charging compartment 10 is a problem.
  • the cooling source 2 also has a cooling control unit (not shown in the figure).
  • the cooling control unit is used to control the flow of the cooling medium flowing through the cooling pipe 12, so as to realize the accurate control of the battery pack 20 through quantitative control of the flow.
  • the purpose of refrigeration is to avoid excessive waste of energy.
  • the charging compartment 10 also has a charging detection unit (not shown in the figure).
  • the charging detection unit is electrically connected to the cooling control unit.
  • the charging detection unit is used to detect whether the battery pack 20 is in a charging state.
  • the charging detection unit sends a start signal to the cooling control unit, so that the cooling source 2 starts to deliver the cooling medium.
  • the state of the cooling source 2 conveying the cooling medium can be synchronized with the charging state of the battery pack 20, so as to prevent the cooling source 2 from continuing to deliver the cooling medium to the battery pack 20 when the battery pack 20 is not in the charging state. Energy waste generated.
  • the charging detection unit may also be provided on the plug mechanism 32 to determine whether the battery pack 20 is in a charging state based on the plugging state of the plug mechanism 32, so as to reduce the possibility of misjudgment by the charging detection unit.
  • the charging detection unit is a photoelectric switch, and it is determined whether the battery pack 20 and the connector assembly 3 are docked in a non-contact detection manner by measuring the distance from the battery pack 20.
  • the charging compartment is also provided with a battery pack temperature detection unit for detecting the temperature of the battery pack.
  • the temperature detection unit is electrically connected with the cooling control unit and controls the opening and closing and flow of the cooling medium according to the detected battery pack temperature.
  • the cooling source 2 also includes a water pump.
  • the water pump can be a piston pump, a gear pump, a vane pump, a centrifugal pump, an axial flow pump, etc., to drive the flow of the cooling medium.
  • the detection unit may also be electrically connected with the water pump to control the running state of the water pump according to the condition of the battery pack 20.
  • This automatic temperature control system cools the battery pack placed in the charging compartment through the cooling system, effectively avoiding heat accumulation inside the battery pack, and helping to control the temperature of the battery pack within a suitable temperature range to improve the battery pack
  • the charging efficiency is high, and the service life of the battery pack is prolonged.
  • the automatic temperature control system can be set in a power exchange station or an energy storage station to cool the battery placed in the charging bin through the battery pack cooling system, and absorb the heat generated during the charging process of the battery pack, so as to avoid heat from being trapped in the battery pack.
  • the internal accumulation helps to control the temperature of the battery pack within a suitable temperature range, improve the charging efficiency of the battery pack, and prolong the service life of the battery pack.
  • This embodiment also provides an automatic temperature control system, the structure of which is roughly the same as the temperature automatic control system provided in Embodiment 1, except that, in this embodiment, the refrigerating part 1 of the battery pack cooling system is not arranged in The battery pack 20 is arranged on the surface of the charging compartment 10 at a position corresponding to the battery pack 20.
  • the refrigerating part 1 By disposing the refrigerating part 1 at the position where the battery pack 20 is arranged on the charging compartment 10, the refrigerating part 1 is used to absorb the heat generated from the battery pack 20 by indirect cooling, so as to prevent the heat from accumulating inside the battery pack 20, and then It is beneficial to control the temperature of the battery pack 20 within a suitable temperature range, is beneficial to improve the charging efficiency of the battery pack 20, and is also beneficial to increase the life of the battery pack 20.
  • the refrigeration unit 1 is not connected to the cooling source 2, but is a self-circulating heat dissipation system.
  • the self-circulating heat dissipation system includes a radiating pipe.
  • the radiating pipe includes a heating portion 1a and a condensing portion 1b.
  • 1a is used to absorb the heat of the battery pack 20 to form steam
  • the condensing part 1b is used to cool the steam to form liquid and return to the heating part 1a
  • the heating part 1a is in thermal contact with the outer wall of the battery pack 20, and the condensing part 1b is arranged away from the surface of the battery pack 20.
  • the heating part 1a of the heat dissipation pipe of the self-circulating heat dissipation system absorbs the heat of the battery pack 20 and forms steam, and the cooling part is used to cool the steam and form a liquid, thereby efficiently cooling the battery pack 20 and avoiding heat in the battery pack.
  • the internal accumulation of 20 is beneficial to control the temperature of the battery pack 20 within an appropriate temperature range.
  • the self-circulating heat dissipation system can cool the battery pack 20 within a certain temperature range without the intervention of an external cooling system, so that the cooling object itself can realize temperature adjustment.
  • the refrigeration unit 1 of this embodiment transfers heat in a self-circulating manner, so there is no need to set up a fluid pipeline connecting the charging compartment 10 to the battery pack 20, so as to satisfy the heat dissipation requirement.
  • the structure of the entire charging compartment 10 can be further simplified.
  • the self-circulating heat dissipation system further includes a recirculation part for returning the cooled liquid from the condensing part 1b to the heating part 1a.
  • a recirculation part for returning the cooled liquid from the condensing part 1b to the heating part 1a.
  • the return portion may be a porous structure provided on the inner wall of the heat dissipation pipe.
  • This embodiment utilizes the capillary phenomenon of the liquid in the porous structure, which is beneficial for the liquid to reach the heating part 1a quickly, thereby helping to improve the circulation efficiency of the liquid evaporating into gas, thereby helping to improve the efficiency of heat exchange, and helping to pack the battery.
  • the temperature of 20 is controlled within a suitable temperature range.
  • the self-circulating heat dissipation system is a heat pipe.
  • the return portion may also be a capillary structure on the wall surface of the liquid wick or the heat dissipation tube.
  • This embodiment utilizes the capillary structure of the liquid wick or the wall surface of the radiating pipe, which is conducive to the occurrence of capillary phenomenon, which in turn is conducive to the rapid arrival of the liquid to the heating part 1a, which is conducive to improving the circulation efficiency of the liquid evaporating into gas, and thus is conducive to increasing the heat.
  • the efficiency of the exchange is conducive to controlling the temperature of the battery pack 20 within a suitable temperature range.
  • the temperature automatic control system in this embodiment can also be set in a power exchange station or an energy storage station to transfer the heat generated during the charging process of the battery pack to the outside through the battery pack cooling system, so as to prevent heat from accumulating inside the battery pack. It is beneficial to control the temperature of the battery pack within a suitable temperature range, improve the charging efficiency of the battery pack, and prolong the service life of the battery pack.
  • This embodiment also provides an automatic temperature control system, the structure of which is roughly the same as the temperature automatic control system provided in the second embodiment.
  • the refrigeration unit 1 is not a self-circulating heat dissipation system, but The refrigeration pipe 14 is arranged on the surface of the battery tray 4 so that the cooling medium can flow through the battery tray 4.
  • the refrigeration unit 1 is used to absorb the heat generated from the battery pack 20 through indirect cooling, so as to prevent heat from accumulating inside the battery pack 20, thereby helping to reduce the temperature of the battery pack 20. Controlling within a suitable temperature range is beneficial to improving the charging efficiency of the battery pack 20 and also beneficial to improving the life of the battery pack 20.
  • the refrigeration pipe 14 is arranged on the battery tray 4 through a refrigeration plate 15.
  • the refrigeration plate 15 includes a plate body and a pipe arranged in the plate body, and the refrigeration pipe 14 is provided with
  • the refrigeration pipe 14 is indirectly arranged on the battery tray 4 through the refrigeration plate 15 to fix the refrigeration pipe 14 with the refrigeration plate 15, which is beneficial to prevent accidental damage to the refrigeration pipe 14 and to improve the life of the refrigeration unit 1.
  • the refrigerating tubes 14 should be continuously and evenly arranged on the refrigerating plate 15 at intervals.
  • the material of the plate body may include one of aluminum alloy, copper, steel or graphite.
  • the material of the refrigeration tube 14 may include one of aluminum alloy, copper, or steel.
  • the structure of the refrigeration tube 14 is a round tube or a rectangular tube.
  • the refrigerating tube 14 may not be indirectly connected to the battery tray 4 by being provided on the refrigerating plate 15 but directly arranged on the surface of the battery tray 4 at intervals.
  • the battery tray 4 is also provided with a tray cooling connector 41, the tray cooling connector 41 is connected to the two ends of the refrigeration pipe 14, and the tray cooling connector 41 is used for docking with the cooling source 2 of the automatic temperature control system to connect the battery
  • the pipeline connection can be quickly cut off, which improves the convenience of connection between the battery pack cooling system and the battery tray 4 of the charging compartment 10.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Power Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Transportation (AREA)
  • Automation & Control Theory (AREA)
  • Secondary Cells (AREA)
  • Battery Mounting, Suspending (AREA)

Abstract

Système de régulation de température automatique et station d'échange d'énergie et station de stockage d'énergie le comprenant. Le système de commande de température automatique comprend une pluralité de compartiments de charge, qui sont utilisés pour charger des blocs-batteries placés à l'intérieur de ceux-ci ; chaque compartiment de charge est pourvu d'un système de refroidissement de bloc-batterie, et le système de refroidissement de bloc-batterie comprend une partie de réfrigération, qui est disposée à une position correspondante du bloc-batterie dans le compartiment de charge ou comprend une interface pour faire entrer un milieu de refroidissement dans le bloc-batterie. Dans le système de régulation de température automatique, un système de refroidissement de bloc-batterie est disposé dans chaque compartiment de charge, de telle sorte que la chaleur générée par un bloc-batterie est absorbée par une partie de réfrigération du système de refroidissement de bloc-batterie, et la chaleur ne peut pas s'accumuler à l'intérieur du bloc-batterie, ainsi, la température du bloc-batterie est régulée dans une plage de températures appropriée, l'efficacité de charge du bloc-batterie est améliorée, et la durée de vie du bloc-batterie est prolongée.
PCT/CN2020/140043 2019-12-26 2020-12-28 Système de régulation de température automatique et station d'échange d'énergie et station de stockage d'énergie le comprenant WO2021129865A1 (fr)

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CN201911365760.1A CN113131032A (zh) 2019-12-26 2019-12-26 温度自动控制系统及包含其的换电站、储能站
CN201911365760.1 2019-12-26

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